TEST_F(SoundSourceProxyTest, open) {
// This test piggy-backs off of the cover-test files.
for (const auto& filePath: getFilePaths()) {
ASSERT_TRUE(SoundSourceProxy::isFileNameSupported(filePath));
Mixxx::AudioSourcePointer pAudioSource(openAudioSource(filePath));
ASSERT_TRUE(!pAudioSource.isNull());
EXPECT_LT(0, pAudioSource->getChannelCount());
EXPECT_LT(0, pAudioSource->getSamplingRate());
EXPECT_LT(0, pAudioSource->getFrameCount());
}
}
TEST_F(SoundSourceProxyTest, open) {
// This test piggy-backs off of the cover-test files.
for (const auto& filePath: getFilePaths()) {
ASSERT_TRUE(SoundSourceProxy::isFileNameSupported(filePath));
Mixxx::AudioSourcePointer pAudioSource(openAudioSource(filePath));
// Obtaining an AudioSource may fail for unsupported file formats,
// even if the corresponding file extension is supported, e.g.
// AAC vs. ALAC in .m4a files
if (pAudioSource.isNull()) {
// skip test file
continue;
}
EXPECT_LT(0, pAudioSource->getChannelCount());
EXPECT_LT(0, pAudioSource->getSamplingRate());
EXPECT_LT(0, pAudioSource->getFrameCount());
}
}
TEST_F(SoundSourceProxyTest, seekForward) {
const SINT kReadFrameCount = 10000;
// According to API documentation of op_pcm_seek():
// "...decoding after seeking may not return exactly the same
// values as would be obtained by decoding the stream straight
// through. However, such differences are expected to be smaller
// than the loss introduced by Opus's lossy compression."
// NOTE(uklotzde): The current version 0.6 of opusfile doesn't
// seem to support sample accurate seeking. The differences
// between the samples decoded with continuous reading and
// those samples decoded after seeking are quite noticeable!
const CSAMPLE kOpusSeekDecodingError = 0.2f;
for (const auto& filePath: getFilePaths()) {
ASSERT_TRUE(SoundSourceProxy::isFileNameSupported(filePath));
qDebug() << "Seek forward test:" << filePath;
Mixxx::AudioSourcePointer pContReadSource(openAudioSource(filePath));
ASSERT_FALSE(pContReadSource.isNull());
const SINT readSampleCount = pContReadSource->frames2samples(kReadFrameCount);
SampleBuffer contReadData(readSampleCount);
SampleBuffer seekReadData(readSampleCount);
#ifdef __FFMPEGFILE__
if (dynamic_cast<Mixxx::SoundSourceFFmpeg*>(pContReadSource.data())) {
if (filePath.endsWith(".mp3")) {
qDebug() << "Skip test since it will fail using SoundSourceFFmpeg";
continue;
}
}
#endif
for (SINT contFrameIndex = 0;
pContReadSource->isValidFrameIndex(contFrameIndex);
contFrameIndex += kReadFrameCount) {
// Read next chunk of frames for Cont source without seek
const SINT contReadFrameCount =
pContReadSource->readSampleFrames(kReadFrameCount, &contReadData[0]);
Mixxx::AudioSourcePointer pSeekReadSource(openAudioSource(filePath));
ASSERT_FALSE(pSeekReadSource.isNull());
ASSERT_EQ(pContReadSource->getChannelCount(), pSeekReadSource->getChannelCount());
ASSERT_EQ(pContReadSource->getFrameCount(), pSeekReadSource->getFrameCount());
// Seek source to next chunk and read it
const SINT seekFrameIndex =
pSeekReadSource->seekSampleFrame(contFrameIndex);
ASSERT_EQ(contFrameIndex, seekFrameIndex);
const SINT seekReadFrameCount =
pSeekReadSource->readSampleFrames(kReadFrameCount, &seekReadData[0]);
// content of both buffers should be equal
ASSERT_EQ(contReadFrameCount, seekReadFrameCount);
const SINT readSampleCount =
pContReadSource->frames2samples(contReadFrameCount);
for (SINT readSampleOffset = 0;
readSampleOffset < readSampleCount;
++readSampleOffset) {
if (filePath.endsWith(".opus")) {
EXPECT_NEAR(contReadData[readSampleOffset], seekReadData[readSampleOffset], kOpusSeekDecodingError)
<< "Mismatch in " << filePath.toStdString()
<< " at seek frame index " << seekFrameIndex
<< "/" << pContReadSource->getMaxFrameIndex()
<< " for read sample offset " << readSampleOffset;
} else {
// NOTE(uklotzde): The comparison EXPECT_EQ might be
// replaced with EXPECT_FLOAT_EQ to guarantee almost
// accurate seeking. Currently EXPECT_EQ works for all
// tested file formats except Opus.
EXPECT_EQ(contReadData[readSampleOffset], seekReadData[readSampleOffset])
<< "Mismatch in " << filePath.toStdString()
<< " at seek frame index " << seekFrameIndex
<< "/" << pContReadSource->getMaxFrameIndex()
<< " for read sample offset " << readSampleOffset;
}
}
}
}
}
